Re: [webauthn] Requirements for security of MDC, DPK and attestation (#1808)

From the view of an RP that has strict certification requirements, I think DPK still isn't enough to make mobile devices trustworthy because they implicitly are binding a credential to a third party account. This makes them ineligible for common criteria authentication systems. I think that for all the effort going into DPK, it's likely we'll see RP's not use it due to it's complexity, and the nature of credentials being synced and third party controlled. So my opinion @keikoit is that you should avoid MDC in high assurance scenarios, in favour of FIDO2 certified keys with strict attestation checks around the AAGUIDS in use. It is far simpler to audit and manage from a risk perspective. 

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Received on Monday, 26 September 2022 02:11:40 UTC